Improvement in brick-kilns



D. ASBURY.

Brick-Kiln.

No. 220,213. Patented Oct. 7,1879.

FIG. I.

F'IE'r'. ll.

WITNESSES: MM INVENTOR:

MPETERS, PHOTD-LITHOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

DANIEL ASBURY, OF CHARLOTTE, NORTH CAROLINA, ASSIGNOR OF ONE- HALF OFHIS RIGHT TO EBENEZER NYE HUTOHISON.

IMPROVEMENT 'IN BRICK-KILNS.

Specification forming part of Letters Patent No- 220,213, dated October7, 1879; application filed September 1, 1879.

To all whom it may concern:

Be it known that I, DANIEL ASBURY, of Charlotte, in the county ofMecklenburg and State of North Carolina, have invented a new and usefulImprovement in Brick-Kilns, which improvement is fully set forth in thefollowing specification and accompanying drawings, in which- Figure l isa view in perspective of my kiln. Fig, 2 is a horizontal section of thesame on the line 00 a of Fig. 1. I

The object'of my invention is to build a brick-kiln which shall besimple in its construction, effective in its operations of burning, andinsure a greater saving of time and fuel than has heretofore been done.

My invention consists in arranging the bricks in the side walls orpillars of the firearches so as to leaye small air spaces or fluesleading from the fire-arches into a continuous flue, which extends theentire width of the kiln through the walls or pillars of the arches, sothat theproducts of combustion will receive airdrafts from both sidesand throughout the entire length of the fire-arches or furnaces.

111 the construction of kilns heretofore the walls, pillars, or benchesof the fire-arches or furnaces have been built up solid, and the ends ofthe arches or furnaces left open, so as to admit the air from the dooror end of the furnace over or under or through the fuel. Benches of apermanent character have also been made in brick-kilns of iron, brick,fireclay, 8250., with air spaces or channels entering the furnaces aboveor below the grates. They have also been made with hollow walls orpillars of the fire-arches, with'flues admitting air on a level with thefurnace; but said lines have only extended part way through the kiln,and as a consequence thebricks in the center of the kilns are notuniformly or sufficiently burned.

To cheapen and simplify the construction of kilns of this character, andto obviate the defects above named, I build my walls or pillars theentire length of said walls or pillars, as shown at A.

.In building the sides of the walls or pillars I leave out a brick hereand there from the bottom course. I may leave out every other brick, orhave two, three, or more bricks laid close together in groups, and thenan open space, which connects the furnaces or fire-arches with the linesA, thus forming a series of small flues for the admission of air on alevel with the bottom of the furnaces or fire-arches.

The small flues are shown at B, and may be arranged so as toenter oropen into the fire arches or furnaces directly opposite to each other,or they may alternate. I prefer, however, the former arrangement, forthe reason that the air-currents meeting in the bottom and center of thefirearches tends to increase the draft, making the combustion morecomplete, and distributing the calorific currents directly to and aroundthe mass of bricks above.

O are the fire-arches or furnaces, which extend the entire width of thekiln and are closed at both ends by a door, D.

In this kind or construction of a kiln wood is preferred as a fuel, andit is fed in at both ends of the furnace or fire-arch, and pushed towardthe center, so that theentire arch is a furnace; and by this means thebricks in the center and sides of the kiln are burned uniformly, thecombustion is more complete, and thus a saving of time insured, and,necessarily, a saving of fuel.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

The combination of the continuous fire-arches or furnaces with the small lateral fines or open .ings and the continuous fines or air-passages

